Minor league team names seem to change just as frequently as the parks, especially when teams change MLB affliliates. Just in the International League there's been some recent changes. Gwinnett County changed from Braves to Stripers last season despite still being a Braves affiliate (think that has to do with the big club moving so close to their neighborhood). Just last month, Syracuse announced they'd be known as the Mets going forward after they were purchased by the MLB's Mets. They'd been the Chiefs forever, except for a decade when they were the Sky Chiefs. The Scranton Wilkes-Barre team went from being the Red Barons to the Yankees to the RailRiders in less than 10 years.Nice!
You don't want a 'polar' name as the stadium naming rights likely have a finite time limit and may not get renewed down the road.
Stadiums change names frequently.
Re-branding for the sake of re-branding is a thing with minor league teams. Just look at the aforementioned Trash Pandas. Or the New Orleans Baby Cakes (née Zephyrs). Or the Jacksonville Jumbo Shrimp (formerly the Suns). The Worcester team could go with a Polar theme now and just change it should the park get a new name.